3774647648 has 48 divisors (see below), whose sum is σ = 7642260864. Its totient is φ = 1833891840.

The previous prime is 3774647647. The next prime is 3774647671. The reversal of 3774647648 is 8467464773.

It is a junction number, because it is equal to n+sod(n) for n = 3774647593 and 3774647602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3774647647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171736 + ... + 1174952.

It is an arithmetic number, because the mean of its divisors is an integer number (159213768).

Almost surely, 2^3774647648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3774647648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3821130432).

3774647648 is an abundant number, since it is smaller than the sum of its proper divisors (3867613216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3774647648 is a wasteful number, since it uses less digits than its factorization.

3774647648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4247 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 56.

The square root of 3774647648 is about 61438.1611703996. The cubic root of 3774647648 is about 1557.0126436755.

The spelling of 3774647648 in words is "three billion, seven hundred seventy-four million, six hundred forty-seven thousand, six hundred forty-eight".